You're swinging your arms freely with a slight bend in your elbows. A little pumping with your arms is OK.

Your stomach muscles are slightly tightened and your back is straight, not arched forward or backward.

You're walking smoothly, rolling your foot from heel to toe.

As you start your walking routine, remember to:

Get the right gear. Choose shoes with proper arch support, a firm heel and thick flexible soles to cushion your feet and absorb shock. Wear comfortable clothes and gear appropriate for various types of weather. If you walk outdoors when it's dark, wear bright colors or reflective tape for visibility.

Choose your course carefully. If you'll be walking outdoors, avoid paths with cracked sidewalks, potholes, low-hanging limbs or uneven turf. If the weather isn't appropriate for walking, consider walking in a shopping mall that offers open times for walkers.

Warm up. Walk slowly for five to 10 minutes to warm up your muscles and prepare your body for exercise.

Cool down. At the end of your walk, walk slowly for five to 10 minutes to help your muscles cool down.

Stretch. After you cool down, gently stretch your muscles. If you'd rather stretch before you walk, remember to warm up first.

For most healthy adults, the Department of Health and Human Services guidelines recommend at least 150 minutes of moderate aerobic activity, 75 minutes of vigorous aerobic activity, or an equivalent combination of moderate and vigorous aerobic activity a week. Physical activity can be spread throughout the week. The guidelines also recommend strength training exercises of all the major muscle groups at least twice a week.

As a general goal, aim for at least 30 minutes of physical activity a day. If you can't set aside that much time, try several 10-minute sessions throughout the day.

Remember, though, it's OK to start slowly — especially if you haven't been exercising regularly. You might start with five minutes a day the first week, and then increase your time by five minutes each week until you reach at least 30 minutes.

Keeping a record of how many steps you take, the distance you walk and how long it takes can help you see where you started from and serve as a source of inspiration. Just think how good you'll feel when you see how many miles you've walked each week, month or year.

Record these numbers in a walking journal or log them in a spreadsheet or a physical activity app. Another option is to use an electronic device such as a pedometer to calculate steps and distance.

Starting a walking program takes initiative. Sticking with it takes commitment. To stay motivated:

Set yourself up for success. Start with a simple goal, such as, "I'll take a 10-minute walk during my lunch break." When your 10-minute walk becomes a habit, set a new goal, such as, "I'll walk for 20 minutes after work." Find specific times for walks. Soon you could be reaching for goals that once seemed impossible.

Make walking enjoyable. If you don't enjoy solitary walks, ask a friend or neighbor to join you. If you're invigorated by groups, join a health club. You might like listening to music while you walk.

Vary your routine. If you walk outdoors, plan several different routes for variety. If you're walking alone, be sure to tell someone which route you're taking. Walk in safe, well-lit locations.

Take missed days in stride. If you find yourself skipping your daily walks, don't give up. Remind yourself how good you feel when you include physical activity in your daily routine, and then get back on track.

Once you take that first step, you're on the way to an important destination — better health.

Walking: A step in the right direction. National Institute of Diabetes and Digestive and Kidney Diseases. http://www.niddk.nih.gov/health-information/health-topics/weight-control/walking-step-right-direction/Pages/walking-step-right-direction.aspx. Accessed Dec. 28, 2015.

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